Leonardo DiCaprio and the production companies for 'The Wolf of Wall Street' are being sued for defamation by former financial lawyer Andrew Greene, who contends one of the movie's characters, "portrayed as a criminal, drug user, degenerate,” was loosely based on him.

Lana Del Rey said that Radiohead are suing her for copyright infringement over a chord progression on her latest album. Del Rey says the song wasn’t inspired by ‘Creep’ and she offered 40 percent royalties, but it wasn’t enough.

Joan Baez is an American folk singer, songwriter and activist who is best known for songs like 'There But for Fortune,' 'The Night They Drove Old Dixie Down' and 'Diamonds and Rust' while serving as a voice for protest movements around the world.

Actor Robert Redford is a Hollywood legend, known for his roles in acclaimed films like 'The Sting' and 'The Way We Were.' He is also an accomplished director, producer and entrepreneur, having started the Sundance Institute in the early '80s.

Erin Brockovich is a consumer advocate and environmental activist whose involvement in one of the largest direct action lawsuits in United States history was the subject of a 2000 film starring Julia Roberts.